react-day-picker/build/Helpers.js

Flexible date picker component for React

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

exports.cancelEvent = cancelEvent;
exports.getFirstDayOfMonth = getFirstDayOfMonth;
exports.getDaysInMonth = getDaysInMonth;
exports.getModifiersFromProps = getModifiersFromProps;
exports.getFirstDayOfWeekFromProps = getFirstDayOfWeekFromProps;
exports.isRangeOfDates = isRangeOfDates;
exports.getMonthsDiff = getMonthsDiff;
exports.getWeekArray = getWeekArray;
exports.startOfMonth = startOfMonth;
exports.getDayNodes = getDayNodes;
exports.nodeListToArray = nodeListToArray;
exports.hasOwnProp = hasOwnProp;

var _DateUtils = require('./DateUtils');

var _LocaleUtils = require('./LocaleUtils');

var _classNames = require('./classNames');

var _classNames2 = _interopRequireDefault(_classNames);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function cancelEvent(e) {
  e.preventDefault();
  e.stopPropagation();
}

function getFirstDayOfMonth(d) {
  return new Date(d.getFullYear(), d.getMonth(), 1, 12);
}

function getDaysInMonth(d) {
  var resultDate = getFirstDayOfMonth(d);

  resultDate.setMonth(resultDate.getMonth() + 1);
  resultDate.setDate(resultDate.getDate() - 1);

  return resultDate.getDate();
}

function getModifiersFromProps(props) {
  var modifiers = _extends({}, props.modifiers);
  if (props.selectedDays) {
    modifiers[props.classNames.selected] = props.selectedDays;
  }
  if (props.disabledDays) {
    modifiers[props.classNames.disabled] = props.disabledDays;
  }
  return modifiers;
}

function getFirstDayOfWeekFromProps(props) {
  var firstDayOfWeek = props.firstDayOfWeek,
      _props$locale = props.locale,
      locale = _props$locale === undefined ? 'en' : _props$locale,
      _props$localeUtils = props.localeUtils,
      localeUtils = _props$localeUtils === undefined ? {} : _props$localeUtils;

  if (!isNaN(firstDayOfWeek)) {
    return firstDayOfWeek;
  }
  if (localeUtils.getFirstDayOfWeek) {
    return localeUtils.getFirstDayOfWeek(locale);
  }
  return 0;
}

function isRangeOfDates(value) {
  return !!(value && value.from && value.to);
}

function getMonthsDiff(d1, d2) {
  return d2.getMonth() - d1.getMonth() + 12 * (d2.getFullYear() - d1.getFullYear());
}

function getWeekArray(d) {
  var firstDayOfWeek = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : (0, _LocaleUtils.getFirstDayOfWeek)();
  var fixedWeeks = arguments[2];

  var daysInMonth = getDaysInMonth(d);
  var dayArray = [];

  var week = [];
  var weekArray = [];

  for (var i = 1; i <= daysInMonth; i += 1) {
    dayArray.push(new Date(d.getFullYear(), d.getMonth(), i, 12));
  }

  dayArray.forEach(function (day) {
    if (week.length > 0 && day.getDay() === firstDayOfWeek) {
      weekArray.push(week);
      week = [];
    }
    week.push(day);
    if (dayArray.indexOf(day) === dayArray.length - 1) {
      weekArray.push(week);
    }
  });

  // unshift days to start the first week
  var firstWeek = weekArray[0];
  for (var _i = 7 - firstWeek.length; _i > 0; _i -= 1) {
    var outsideDate = (0, _DateUtils.clone)(firstWeek[0]);
    outsideDate.setDate(firstWeek[0].getDate() - 1);
    firstWeek.unshift(outsideDate);
  }

  // push days until the end of the last week
  var lastWeek = weekArray[weekArray.length - 1];
  for (var _i2 = lastWeek.length; _i2 < 7; _i2 += 1) {
    var _outsideDate = (0, _DateUtils.clone)(lastWeek[lastWeek.length - 1]);
    _outsideDate.setDate(lastWeek[lastWeek.length - 1].getDate() + 1);
    lastWeek.push(_outsideDate);
  }

  // add extra weeks to reach 6 weeks
  if (fixedWeeks && weekArray.length < 6) {
    var lastExtraWeek = void 0;

    for (var _i3 = weekArray.length; _i3 < 6; _i3 += 1) {
      lastExtraWeek = weekArray[weekArray.length - 1];
      var lastDay = lastExtraWeek[lastExtraWeek.length - 1];
      var extraWeek = [];

      for (var j = 0; j < 7; j += 1) {
        var _outsideDate2 = (0, _DateUtils.clone)(lastDay);
        _outsideDate2.setDate(lastDay.getDate() + j + 1);
        extraWeek.push(_outsideDate2);
      }

      weekArray.push(extraWeek);
    }
  }

  return weekArray;
}

function startOfMonth(d) {
  var newDate = (0, _DateUtils.clone)(d);
  newDate.setDate(1);
  newDate.setHours(12, 0, 0, 0); // always set noon to avoid time zone issues
  return newDate;
}

function getDayNodes(node, classNames) {
  var outsideClassName = void 0;
  if (classNames === _classNames2.default) {
    // When using CSS modules prefix the modifier as required by the BEM syntax
    outsideClassName = classNames.day + '--' + classNames.outside;
  } else {
    outsideClassName = '' + classNames.outside;
  }
  var dayQuery = classNames.day.replace(/ /g, '.');
  var outsideDayQuery = outsideClassName.replace(/ /g, '.');
  var selector = '.' + dayQuery + ':not(.' + outsideDayQuery + ')';
  return node.querySelectorAll(selector);
}

function nodeListToArray(nodeList) {
  return Array.prototype.slice.call(nodeList, 0);
}

function hasOwnProp(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}
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